METHOD FOR DETERMINING AIRCRAFT SENSOR FAILURE WITHOUT A REDUNDANT SENSOR AND CORRECT SENSOR MEASUREMENT WHEN REDUNDANT AIRCRAFT SENSORS GIVE INCONSISTENT READINGS

摘要

A computer implemented method to determine aircraft sensor failure and correctaircraft sensor measurement in an aircraft system is provide. The computerimplementedmethod includes determining, using a physics-based high-fidelity model, a high-fidelitysystem response over operating conditions during which sensor drift of asensor of interestcan be detected, creating, using an aircraft system controller, a reducedorder model (ROM)using the high-fidelity system response, wherein the ROM correlates with thesensor ofinterest when operating normally, calculating, using the ROM, at least onereduced ordersensor value, determining an error value between the reduced order sensorvalue and a sensormeasurement reading from the sensor of interest, and comparing the error valueto an errorthreshold, wherein the sensor of interest has failed when the error value isgreater than theerror threshold.